4 years ago

An object’s resistance to change in motion is dependent solely on what quantity

Physics

1 answer:

Levart [38]4 years ago

4 0

That's the description of the property of so-called "inertia".

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A 10.0 m wire is hung from a high ceiling and held tightly below

yan [13]

Answer:

5 m

Explanation:

Speed of waves is as the product of frequency and wavelength hence expressed as s=fw where f is the frequency of waves in Hz, s is the speed in m/s and w is wavelength in meters.

Making w the subject of the formula then

$w=\frac {s}{f}$

Substituting 335 m/s for s and 67 Hz for f then the wavelength is

$w=\frac {335}{67}=5m$

Wavelength is the distance between successive crests. Since the string is 10m, wavelengths of 5m each will be 2 and the crests will be 3.

Wavelenth=5 m

8 0

3 years ago

A uniform solid sphere of radius r = 0.510 m and mass m = 15.5 kg turns counterclockwise about a vertical axis through its cente

klasskru [66]

Answer:

5.160384 kg*m²/s

Explanation:

The vector angular momentum P can be found using the following expression:

P = I * w

I refers to the inertia, that for a sphere is found using the expression:

I = $\frac{2}{5}$ * m * r² = $\frac{2}{5}$ * 15.5kg * (0.510m)² = 1.61262 kg*m².

The angular velocity w is given by the problem, and has a value of 3.2 rad/s.

Replacing the data we get:

P = 1.61262 kg*m² * 3.2 rad/s = 5.160384 kg*m²/s

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3 years ago

A car traveling at a speed of 30 m/s comes to a stoplight. How much time will it take for the car to stop if its acceleration is

Ber [7]

Answer:

i belive its a or c

Explanation:

7 0

3 years ago

Read 2 more answers

Calculate the acceleration if you push with a 20-N horizontal force on a 2-kg block on a horizontal friction-free air table

Afina-wow [57]

Acceleration = force / mass = 20 / 2 = 10 m/s^2

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3 years ago

The African bush elephant weights over 8 tons, which is more than the weight of 4 cars! At maximum speed, it can run up to 40 km

lianna [129]

Answer:

15 mins

Explanation:

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3 years ago